package twoD.IsoPfem.EmbeddedCrackModel;

public interface ITractionSeparationLaw {

	/**
	 * 
	 * @param en
	 * @return value of traction separation law
	 */
	public double g(double en);

	/**
	 * 
	 * @param en
	 * @return derivative of traction separation law
	 */
	public double dg(double en);

	/**
	 * 
	 * @return the tensile strength parameter
	 */
	public double getTensileStrength();

	/**
	 * 
	 * @return the ef parameter
	 */
	double getEf();
}
